Home
Class 11
PHYSICS
Two parallel metallic plates have surfac...

Two parallel metallic plates have surface charge densities `sigma_(1)` and `sigma_(2)` as shown in figure.

`{:(,"Column-I",,,"Column-II"),((A),"If " sigma_(1)+sigma_(2)=0,,(p),"Electric field in region III is towards right"),((B),"If" sigma_(1)+sigma_(2) gt 0,,(q),"Electric field in region I is zero"),((C),"If "sigma_(1)+sigma_(2) lt 0,,(r),"Electric field in region I is towards roght"),(,,,(s),"Nothing can be said"):}`

Text Solution

Verified by Experts

The correct Answer is:
(A) r, (B) r, (C) p
Electric field due to metallic plates remains same and constant at near by points.
[A] For `sigma_(1)+sigma_(2)=0 rArr sigma_(0)=-sigma_(2)`
`:.` Electric field at a point is equal & opposite in direction.
`sigma_(1)+sigma_(2)=0 rArr sigma_(1)=-sigma_(2)`
[B] `sigma_(1)+sigma_(2) gt 0 rArr sigma_(1) & sigma_(2)`
either both positive ot opposite but positive has a greater magnitude. So the net electric field will be away from the plates in region I & III.
[C] Same explanation according to [B].
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MISCELLANEOUS

    ALLEN|Exercise Exercise-04|1 Videos

  • MISCELLANEOUS

    ALLEN|Exercise Exersice-04|1 Videos

  • MISCELLANEOUS

    ALLEN|Exercise Exercise-02|77 Videos

  • KINEMATICS (MOTION ALONG A STRAIGHT LINE AND MOTION IN A PLANE)

    ALLEN|Exercise BEGINNER S BOX-7|8 Videos

  • PHYSICAL WORLD, UNITS AND DIMENSIONS & ERRORS IN MEASUREMENT

    ALLEN|Exercise EXERCISE-IV|8 Videos

Similar Questions

Explore conceptually related problems

Two paralle plane sheets 1 and 2 carry uniform charge densites sigma_(1) and sigma_(2) (see fig. The electric field in the region marked I is ( sigma_(1) gt sigma_(2)) :

Two thin infinite parallel plates have uniform charge densities + sigma and - sigma . The electric field in the space between them is

Three non-conducting large parallel plates have surface charge densities sigma, -2 sigma and 4 sigma respectively as shown in the figure. The electric field at the point P is

Two infinite sheets of unifrom charge density +sigma and -sigma are parallel to each other as shown in the figure. Electric field at the

Four metallic plates are charged as shown in figure. Now, match the following two columns. I overset(sigma)(|)Iioverset(-2 sigma)(|)IIIoverset(sigma)(|)IV

If three infinite charged sheets of uniform surface charge densities sigma, 2sigma and -4 sigma are placed as shown in figure, then find out electric field intensities at points A, B, C and D.

Two parallel large thin metal sheets have equal surface charge densities (sigma = 26.4 xx 10^(-12) C//m^(2)) of opposite signs. The electric field between these sheets is

Figure shown two infinitely large conducting plates A and B. If electric field at C due to charge densities sigma_(1), sigma_(2), sigma_(3) and sigma_(40 is E hat(i) , find sigma_(2) and sigma_(3) in terms of E. Derive a relation between sigma_(1) and sigma_(4) .

Electrical conductivies of Ge and Na are sigma_(1) and sigma_(2) respectively. If these substances are heard, then

Electric field due to an infinite non-conducting sheet of surface charge density sigma , at a distance r from it is

Home
Profile